Steve McGarrett侦探（Alex O"Loughlin饰演,出演,演出,表演）曾经是一位获得过荣誉勋章的海军军官，退役后当上了警察。为了调查爸爸,父亲大人,爹爹,老父亲的谋杀案，他返回了家乡瓦胡岛（夏威夷群岛的主岛）。夏威夷州长认为Steve是个难得的人才，执意挽留他在岛上职业,事业,工作岗位,职责。她想让Steve组建一支专门负责调查重案的精英团队－－规矩由他来定，她在幕后提供支援。这支命名为「Five-0」（50）的团队不走过场，不玩花样，只要能抓住岛上最大的匪帮首领，他们就算是把天弄塌了也没事。

　　一名退休的顶尖以色列特务重操旧业，追缉一位早就死在自己手下的巴勒斯坦激进份子，引发一连串的混乱事件

　　As the new season of this totally re-imagined show opens, Martin Odum is a fugitive, hiding out in present day London and wanted by the FBI for a crime he did not commit. He can't remember his life prior to an injury he suffered in the Iraq War, so he's searching for clues about his true identity with the help of CIA agent Nina Brenner. Meanwhile, in 2001, FBI agent Curtis Ballard and his Czech Police partner, Gabi Miskova, launch an investigation into a Russian gangster named Dimitry.